Frictional forces (Ff) are proportional to normal force FN
{"Image DocumentName": "Frictional forces (Ff) are proportional to normal force FN", "Image ImageDescription": "Frictional forces (Ff) are proportional to normal force FN. (heavier an object is, the greater the friction) Friction depends on the surface.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}